Logo Questions Linux Laravel Mysql Ubuntu Git Menu
 

How to pivot table with T-SQL?

Tags:

tsql

pivot

How to convert table from this format:

Id | Data           |Section
------------------------------------------
1  |1AAA            |AAA
------------------------------------------
1  |1BBB            |BBB
------------------------------------------
1  |1CCC            |CCC
------------------------------------------
2  |2AAA            |AAA
------------------------------------------
2  |2BBB            |BBB
------------------------------------------
2  |2CCC            |CCC
------------------------------------------
3  |3AAA            |AAA
------------------------------------------
3  |3CCC            |CCC
------------------------------------------

To this format with T-sql ?

Id |Column_AAA|Column_BBB|Colunm_CCC|
-------------------------------------
1  |1AAA      |1BBB      |1CCC      |   
-------------------------------------
2  |2AAA      |2BBB      |2CCC      |       
-------------------------------------
3  |3AAA      |.....     |3CCC      |   
like image 455
DevUser Avatar asked Mar 22 '12 21:03

DevUser


1 Answers

this should give you the results you want.

CREATE TABLE #temp
(
    id int,
    data varchar(50),
    section varchar(50)
)
insert into #temp values(1, '1AAA', 'AAA')
insert into #temp values(1, '1BBB', 'BBB')
insert into #temp values(1, '1CCC', 'CCC')
insert into #temp values(2, '2AAA', 'AAA')
insert into #temp values(2, '2BBB', 'BBB')
insert into #temp values(2, '2CCC', 'CCC')
insert into #temp values(3, '3AAA', 'AAA')
insert into #temp values(3, '3BBB', 'BBB')
insert into #temp values(3, '3CCC', 'CCC')

select id, [AAA] as Column_AAA, [BBB] as Column_BBB, [CCC] as Column_CCC
from 
(
    select id, data, section
    from #temp
) x
PIVOT
(
    max(data)
    FOR section IN([AAA], [BBB], [CCC])
) as p

drop table #temp

Results:

id  column_AAA column_BBB   column_CCC
1   1AAA        1BBB        1CCC
2   2AAA        2BBB        2CCC
3   3AAA        3BBB        3CCC
like image 198
Taryn Avatar answered Dec 11 '22 23:12

Taryn